Station is operated in cooperation with the U.S. Environmental Protection Agency .
| Most Recent Instantaneous Value Dec 15 | Min (2006) | 25th percen- tile | Median | Mean | 75th percen- tile | Max (2011) |
|---|---|---|---|---|---|---|
| -- unavailable -- | 380 | 628 | 1200 | 2200 | 2550 | 13000 |